@import url('font-faces.css');

/* ============================================
   ROOT VARIABLES
   ============================================ */

:root {
    /* Colors */
    --color-white: #fff;
    --color-off-white: #fafafa;
    --color-dark: #0D0D0D;
    --color-dark-grey: #1a1a1a;
    --color-light-grey: #f5f5f5;
    --color-medium-grey: #666;
    --color-border: #e0e0e0;
    --color-text: #2a2a2a;
    --color-text-light: #666;
    --color-accent: #0D0D0D;
    
    /* Typography */
    --font-primary: 'Inter Tight', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Font Weights */
    --font-light: 300;
    --font-regular: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border Radius */
    --border-radius-sm: 0.5rem;
    --border-radius-md: 1rem;
    --border-radius-lg: 1.5rem;
    
    /* Shadows */
    --shadow-sm: none;
    --shadow-md: none;
    --shadow-lg: none;
    --shadow-xl: none;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.4s ease;
    
    /* Font Sizes - Responsive */
    --text-xs: clamp(0.75rem, 1vw, 0.875rem);
    --text-sm: clamp(0.875rem, 1.2vw, 1rem);
    --text-base: clamp(1rem, 1.5vw, 1.125rem);
    --text-lg: clamp(1.125rem, 1.8vw, 1.25rem);
    --text-xl: clamp(1.25rem, 2vw, 1.5rem);
    --text-2xl: clamp(1.5rem, 3vw, 2rem);
    --text-3xl: clamp(2rem, 4vw, 3rem);
    --text-4xl: clamp(3rem, 6vw, 4.5rem);
    --text-5xl: clamp(4rem, 8vw, 6rem);
}

/* ============================================
   RESET & BASE
   ============================================ */

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-primary);
    font-weight: 300;
    background-color: var(--color-white);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body::-webkit-scrollbar {
    width: 8px;
}

body::-webkit-scrollbar-track {
    background: var(--color-light-grey);
}

body::-webkit-scrollbar-thumb {
    background: var(--color-medium-grey);
    border-radius: 0;
}

body::-webkit-scrollbar-thumb:hover {
    background: var(--color-dark-grey);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 800;
    line-height: 1.2;
    color: var(--color-dark);
    letter-spacing: -0.02em;
}

a {
    color: inherit;
    text-decoration: none;
    transition: opacity var(--transition-fast);
}

a:hover {
    opacity: 0.7;
}

img, svg {
    display: block;
    max-width: 100%;
    height: auto;
}

button {
    font-family: var(--font-primary);
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

ul, ol {
    list-style: none;
}

input, textarea, select {
    font-family: var(--font-primary);
}

/* ============================================
   HEADER
   ============================================ */

#header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.5rem 5%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    transition: all var(--transition-normal);
}

#header.scrolled {
    padding: 1rem 5%;
}

/* ============================================
   BOOK HERO - LARGE FEATURED SECTION
   ============================================ */

.book-hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 8rem 5% 4rem;
   
}

.book-hero-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 5rem;
    align-items: center;
}

.book-cover-container {
    position: relative;
}

.book-cover {
    width: 100%;
    max-width: 450px;
    aspect-ratio: 2/3;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.book-cover:hover {
    transform: scale(1.02);
}

.book-info {
    padding: 2rem 0;
}

.book-badge {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background: var(--color-dark);
    color: var(--color-white);
    border-radius: 0;
    font-size: var(--text-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1.5rem;
}

.book-info h1 {
    font-size: var(--text-5xl);
    font-weight: 800;
    margin-bottom: 1rem;
    letter-spacing: -0.03em;
}

.book-subtitle {
    font-size: var(--text-xl);
    font-weight: 500;
    color: var(--color-text-light);
    margin-bottom: 0.5rem;
}

.book-author {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 2rem;
}

.book-meta {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    padding: 2rem 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 2rem;
}

.meta-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.meta-label {
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.meta-value {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--color-dark);
}

.book-description {
    font-size: var(--text-lg);
    line-height: 1.8;
    color: var(--color-text);
    margin-bottom: 2.5rem;
}

.action-buttons {
    display: flex;
    flex-wrap: wrap;
    margin-top: 2rem;
    gap: 1rem;
}







/* ============================================
   AWARDS SECTION
   ============================================ */

.awards-section {
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-grey) 100%);
    padding: 3rem;
    border-radius: 0;
    margin: 3rem 0;
    text-align: center;
position: relative;
    overflow: hidden;
}

.awards-section::before {
    content: '🏆';
    position: absolute;
    top: -20px;
    left: -20px;
    font-size: 8rem;
    opacity: 0.05;
    transform: rotate(-15deg);
}

.awards-section::after {
    content: '🏆';
    position: absolute;
    bottom: -20px;
    right: -20px;
    font-size: 8rem;
    opacity: 0.05;
    transform: rotate(15deg);
}

.awards-section h3 {
    font-size: var(--text-2xl);
    color: var(--color-white);
    margin-bottom: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    position: relative;
    z-index: 1;
}

.awards-section h3::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--color-white);
    margin: 1rem auto 0;
    border-radius: 0;
}

.awards-section p {
    font-size: var(--text-lg);
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.95);
    margin: 0;
    position: relative;
    z-index: 1;
}

.awards-section .award-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: rgba(255, 255, 255, 0.15);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 0;
    margin: 0.5rem;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-white);
    backdrop-filter: blur(10px);
    transition: all var(--transition-fast);
}

.awards-section .award-badge:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
}







/* ============================================
   RATING SECTION
   ============================================ */

.rating-section {
    background: var(--color-white);
    padding: 2.5rem;
    border-radius: 0;
    margin: 3rem 0;
    text-align: center;
    border: 2px solid var(--color-border);
transition: all var(--transition-normal);
}

.rating-section:hover {
    border-color: var(--color-dark);
transform: translateY(-5px);
}

.rating-stars {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 2rem;
    margin-bottom: 1rem;
}

.rating-value {
    font-size: var(--text-3xl);
    font-weight: 800;
    color: var(--color-dark);
    margin-left: 1rem;
}

.review-count {
    font-size: var(--text-base);
    color: var(--color-text-light);
    font-weight: 500;
    margin-left: 0.5rem;
}

.rating-breakdown {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1rem;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--color-border);
}

.rating-bar {
    text-align: center;
}

.rating-bar-label {
    font-size: var(--text-xs);
    color: var(--color-text-light);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.rating-bar-value {
    height: 60px;
    background: var(--color-light-grey);
    border-radius: 0;
    position: relative;
    overflow: hidden;
}

.rating-bar-fill {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(180deg, var(--color-dark) 0%, var(--color-dark-grey) 100%);
    border-radius: 0;
    transition: height var(--transition-normal);
}



/* ============================================
   PURCHASE CARD - ENHANCED
   ============================================ */

.purchase-publisher {
    font-size: var(--text-sm);
    color: var(--color-text-light);
    margin-bottom: 1.5rem;
    font-weight: 500;
}


/* ============================================
   BUTTONS
   ============================================ */

.button {
    display: flex !important;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: var(--text-sm);
    color: var(--color-white);
    background: var(--color-dark);
    border: 2px solid var(--color-dark);
    border-radius: 0;
    transition: all var(--transition-fast);
}

.button:hover {
    background: var(--color-dark-grey);
    border-color: var(--color-dark-grey);
    transform: translateY(-2px);
opacity: 1;
}

.button-outline {
    background: transparent;
    color: var(--color-dark);
    border: 2px solid var(--color-border);
}

.button-outline:hover {
    background: var(--color-light-grey);
    border-color: var(--color-dark);
}

/* ============================================
   SECTION STYLES
   ============================================ */

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-label {
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: var(--text-xs);
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 1rem;
}

.section-title {
    font-family: var(--font-primary);
    font-weight: 800;
    font-size: var(--text-4xl);
    color: var(--color-dark);
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

/* ============================================
   TABLE OF CONTENTS SECTION
   ============================================ */

.toc-section {
    padding: 5rem 5%;
    background: var(--color-white);
}

.toc-container {
    max-width: 1200px;
    margin: 0 auto;
}

.toc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.toc-item {
    background: var(--color-white);
    padding: 2rem;
    border-radius: 0;
    border: 1px solid var(--color-border);
    transition: all var(--transition-normal);
}

.toc-item:hover {
    transform: translateY(-8px);
border-color: var(--color-dark);
}

.toc-number {
    font-size: var(--text-xs);
    font-weight: 700;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
}

.toc-title {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 0.75rem;
}

.toc-description {
    font-size: var(--text-sm);
    line-height: 1.7;
    color: var(--color-text);
}

/* ============================================
   CONTENT SECTION
   ============================================ */

.content-section {
    padding: 5rem 5%;
    background: var(--color-off-white);
}

.content-container {
    max-width: 800px;
    margin: 0 auto;
}

.content-container h2 {
    font-size: var(--text-3xl);
    margin-bottom: 1.5rem;
    margin-top: 3rem;
}

.content-container h2:first-child {
    margin-top: 0;
}



.content-container blockquote {
    background: var(--color-white);
    padding: 2rem;
    border-left: 4px solid var(--color-dark);
    border-radius: 0;
    margin: 3rem 0;
    font-size: var(--text-lg);
    font-style: italic;
    line-height: 1.8;
    color: var(--color-dark);
}

.content-container strong {
    font-weight: 700;
    color: var(--color-dark);
}

/* ============================================
   EXCERPT SECTION
   ============================================ */

.excerpt-section {
    padding: 6rem 5%;
    background: var(--color-dark);
    color: var(--color-white);
    text-align: center;
}

.excerpt-container {
    max-width: 900px;
    margin: 0 auto;
}

.excerpt-text {
    font-size: var(--text-2xl);
    font-weight: 400;
    line-height: 1.7;
    font-style: italic;
    margin-bottom: 2rem;
}

.excerpt-source {
    font-size: var(--text-base);
    font-weight: 500;
    color: rgba(255, 255, 255, 0.7);
}

/* ============================================
   REVIEWS SECTION
   ============================================ */

.reviews-section {
    padding: 5rem 5%;
    background: var(--color-white);
}

.reviews-container {
    max-width: 1400px;
    margin: 0 auto;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.review-card {
    background: var(--color-off-white);
    padding: 2rem;
    border-radius: 0;
    border: 1px solid var(--color-border);
    transition: all var(--transition-normal);
}

.review-card:hover {
    transform: translateY(-8px);
}

.review-stars {
    font-size: var(--text-xl);
    color: var(--color-dark);
    margin-bottom: 1.5rem;
}

.review-text {
    font-size: var(--text-base);
    line-height: 1.8;
    color: var(--color-text);
    margin-bottom: 2rem;
}

.review-author {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
}

.review-author-avatar {
    width: 48px;
    height: 48px;
    background: var(--color-dark);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--text-sm);
    flex-shrink: 0;
}

.review-author-info {
    flex: 1;
}

.review-author-name {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 0.25rem;
}

.review-source {
    font-size: var(--text-sm);
    color: var(--color-text-light);
    font-weight: 500;
}

/* ============================================
   PURCHASE SECTION
   ============================================ */

.purchase-section {
    padding: 5rem 5%;
    background: var(--color-off-white);
}

.purchase-container {
    max-width: 1200px;
    margin: 0 auto;
}

.purchase-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.purchase-card {
    background: var(--color-white);
    padding: 2.5rem;
    border-radius: 0;
    border: 1px solid var(--color-border);
    text-align: center;
    transition: all var(--transition-normal);
}

.purchase-card:hover {
    transform: translateY(-8px);
border-color: var(--color-dark);
}

.purchase-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: var(--color-light-grey);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.purchase-card:hover .purchase-icon {
    background: var(--color-dark);
    color: var(--color-white);
}

.purchase-card h3 {
    font-size: var(--text-xl);
    margin-bottom: 1rem;
}

.purchase-price {
    font-size: var(--text-3xl);
    font-weight: 800;
    color: var(--color-dark);
    margin-bottom: 1rem;
}

.purchase-description {
    font-size: var(--text-sm);
    line-height: 1.7;
    color: var(--color-text);
    margin-bottom: 2rem;
}

/* ============================================
   AUTHOR SECTION
   ============================================ */

.author-section {
    padding: 5rem 5%;
    background: var(--color-white);
}

.author-container {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 4rem;
    align-items: start;
}

.author-photo {
    width: 100%;
    aspect-ratio: 1;
    background: var(--color-light-grey);
    border-radius: 0;
}

.author-info h3 {
    font-size: var(--text-3xl);
    margin-bottom: 0.5rem;
}

.author-title {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 2rem;
}

.author-bio {
    font-size: var(--text-base);
    line-height: 1.8;
    color: var(--color-text);
}

/* ============================================
   RELATED BOOKS SECTION
   ============================================ */

.related-section {
    padding: 5rem 5%;
    background: var(--color-off-white);
}

.related-container {
    max-width: 1200px;
    margin: 0 auto;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.book-card {
    background: var(--color-white);
    border-radius: 0;
    overflow: hidden;
transition: all var(--transition-normal);
    cursor: pointer;
    border: 1px solid var(--color-border);
}

.book-card:hover {
    transform: translateY(-8px);
}

.book-card-cover {
    width: 100%;
    aspect-ratio: 5/3;
    background-size: cover;
    background-position: center;
    background-color: var(--color-light-grey);
}

.book-card-content {
    padding: 1.5rem;
}

.book-card-content h3 {
    font-size: var(--text-lg);
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--color-dark);
}

.book-card-meta {
    font-size: var(--text-sm);
    color: var(--color-text-light);
    font-weight: 500;
}











/* ============================================
   NEWSLETTER SECTION
   ============================================ */

.newsletter-section {
    background: var(--color-dark);
    color: var(--color-white);
    text-align: center;
}

.newsletter-content {
    max-width: 700px;
    margin: 0 auto;
}

.newsletter-content h2 {
    font-size: var(--text-3xl);
    color: var(--color-white);
    margin-bottom: 1rem;
}

.newsletter-content p {
    font-size: var(--text-base);
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
    margin-bottom: 2rem;
}

.newsletter-form {
    display: flex;
    gap: 1rem;
    max-width: 500px;
    margin: 0 auto;
}

.newsletter-input {
    flex: 1;
    padding: 1rem 1.5rem;
    font-family: var(--font-primary);
    font-size: var(--text-base);
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 0;
    color: var(--color-white);
    transition: all var(--transition-fast);
}

.newsletter-input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.newsletter-input:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--color-white);
}

.newsletter-button {
    padding: 1rem 2rem;
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: var(--text-base);
    background: var(--color-white);
    color: var(--color-dark);
    border: none;
    border-radius: 0;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.newsletter-button:hover {
    transform: translateY(-2px);
}










/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 1024px) {
    .book-hero-content {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .book-cover {
        max-width: 400px;
        margin: 0 auto;
    }
    
    .book-meta {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .action-buttons {
        justify-content: center;
    }
    
    .author-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .author-photo {
        max-width: 300px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .book-hero {
        padding: 6rem 5% 3rem;
    }
    
    .book-info h1 {
        font-size: var(--text-4xl);
    }
    
    .book-meta {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .meta-item {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        padding-bottom: 1rem;
        border-bottom: 1px solid var(--color-border);
    }
    
    .meta-item:last-child {
        border-bottom: none;
        padding-bottom: 0;
    }
    
    .toc-grid,
    .reviews-grid,
    .purchase-grid,
    .related-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .section-header {
        margin-bottom: 2rem;
    }
    
    .book-description {
        font-size: var(--text-base);
    }
    
    .action-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .button {
        justify-content: center;
        width: 100%;
    }
    
    .excerpt-text {
        font-size: var(--text-lg);
    }
    
    .content-container h2 {
        font-size: var(--text-2xl);
    }
}


/* ============================================
   UTILITIES
   ============================================ */

.text-center {
    text-align: center;
}

.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }

.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }

/* ============================================
   BOOK DETAIL — OPIS / ULOMAK / RECENZIJA
   ============================================ */

.book-detail-page .book-hero {
    min-height: auto;
    padding: 6.5rem 5% 2.5rem;
}

.book-detail-page .book-meta {
    margin-bottom: 1.25rem;
}

.book-publisher {
    font-size: var(--text-sm);
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-light);
    margin-bottom: 1.25rem;
}

.book-jump-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1.25rem;
    margin-bottom: 1.5rem;
    padding-top: 0.25rem;
}

.book-jump-nav a {
    font-size: var(--text-xs);
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-dark);
    border-bottom: 1px solid currentColor;
    opacity: 1;
}

.book-jump-nav a:hover {
    opacity: 0.55;
}

.book-text-section {
    padding: 2rem 5% 2.25rem;
    background: var(--color-white);
}

.book-text-section--alt {
    background: var(--color-off-white);
}

.book-text-container {
    max-width: 42rem;
    margin: 0 auto;
}

.book-section-header {
    text-align: center;
    margin-bottom: 1.25rem;
}

.book-section-header .section-label {
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 0.35rem;
}

.book-section-header .section-title {
    font-size: var(--text-3xl);
    margin: 0;
}

.book-review-source {
    text-align: center;
    font-size: var(--text-sm);
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-text-light);
    margin: 0 auto 1rem;
    max-width: 36rem;
}

.book-rich-text.prose-body p {
    margin-bottom: 0;
}


/* Quill <strong> defaults to "bolder"; with body font-weight:300 that
   only resolves to 400 — same Regular face as light, so bold is invisible. */
.book-rich-text strong,
.book-rich-text b {
    font-weight: 700;
    color: var(--color-dark);
}

.book-rich-text em,
.book-rich-text i {
    font-style: italic;
}

.book-rich-text u {
    text-decoration: underline;
}

.book-review-body {
    border-top: 1px solid var(--color-border);
    padding-top: 1rem;
}

.book-sub-block {
    margin-top: 1.75rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--color-border);
}

.book-review-source a {
    color: inherit;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.book-sub-title {
    font-size: var(--text-base);
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    text-align: center;
    margin-bottom: 0.75rem;
}

.book-rating-block {
    text-align: center;
}

.book-detail-page .purchase-section {
    padding-top: 2.5rem;
}

@media (max-width: 768px) {
    .book-detail-page .book-hero {
        padding: 5.5rem 5% 2rem;
    }

    .book-text-section {
        padding: 1.75rem 5% 2rem;
    }

    .book-jump-nav {
        gap: 0.4rem 1rem;
    }
}